My Weather

Pyrojoe on ebay over in the states has some of these amplifiers removed from the larger Spectrian amplifiers.
Power output is around 25-30Watts, power input required is only 10mW or so, prefect for the output of a Comtech 13cm ATV Transmitter.

They look like this:

Spectrian 30W amplifier

Here is the connection information taken from pyrojoe's ebay listing.

Power requirement is 13-14V @ 10A and + 18 to +28v bias @ 50Ma.
This bias is used for the gate voltage circuit on the power control FET.
There is a logic level enable pin which requires grounding to enable power to this amplifier and can be used for a PTT/KEY control.
The connector also has a direct temperature output pin with the function 10.0mV/degree F which measures the board temperature close to the 30W RF output GaAs FET (NEC S2527-30).
Note that the output of this amplifier is protected by an internal 125W isolator!
Here are the pin functions for the DC bias connector:
Pins 1,2,3,4 are all +12 to 13Vdc @ 7.5 or so amps.
Pins 5,6,7,8,10 are all ground.
Pins 12,13 are N.C.
Pin 11 is Logic level Low enable, normally floats high. This turns on the +12v to the internal transistors.
Pin 14 is + 26V bias supply input @ 50Ma.
Pin 9 indicates temperature = 10mV/degree F.